GB611817A - Improvements in or relating to trip means for electric circuit breakers - Google Patents
Improvements in or relating to trip means for electric circuit breakersInfo
- Publication number
- GB611817A GB611817A GB14036/46A GB1403646A GB611817A GB 611817 A GB611817 A GB 611817A GB 14036/46 A GB14036/46 A GB 14036/46A GB 1403646 A GB1403646 A GB 1403646A GB 611817 A GB611817 A GB 611817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- latch
- core
- trip means
- yoke
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/40—Combined electrothermal and electromagnetic mechanisms
- H01H71/405—Combined electrothermal and electromagnetic mechanisms in which a bimetal forms the inductor for the electromagnetic mechanism
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
611,817. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 9, 1946, No. 14036. Convention date, May 9, 1945. [Class 38 (v)] A trip means suitable for the automatic circuit-breaker described in Specification 611,686 comprises a magnetic core 63 and armature 65 carried by, respectively, a bimetal strip 45 and a resilient member 69, which is secured to the strip at 73 and carries a latch 67. The operating point of the bimetal strip is adjustable by a screw 85, as described in the above-mentioned Specification, and is independent of the setting for the electromagnetic trip, which is for dealing with short-circuits. In Fig. 3, the armature carries the latch 115, and is pivoted to the core at 109, an adjustable spring 117 controlling the setting. The armature may, alternatively serve as a latch, and be pivotally supported in a yoke secure to the core, the armature normally resting against a stop provided by a bendable part of the yoke.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US592804A US2624816A (en) | 1945-05-09 | 1945-05-09 | Circuit breaker |
US287018A US2677026A (en) | 1945-05-09 | 1952-05-09 | Circuit breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
GB611817A true GB611817A (en) | 1948-11-04 |
Family
ID=24372133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB14036/46A Expired GB611817A (en) | 1945-05-09 | 1946-05-09 | Improvements in or relating to trip means for electric circuit breakers |
Country Status (3)
Country | Link |
---|---|
US (2) | US2624816A (en) |
DE (1) | DE823755C (en) |
GB (1) | GB611817A (en) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE875063C (en) * | 1948-10-02 | 1953-04-30 | Siemens Ag | Small circuit breaker with direct current flowing through the bimetal release |
US2824191A (en) * | 1953-02-05 | 1958-02-18 | Fed Electric Prod Co | Circuit breakers |
NL186856B (en) * | 1953-04-22 | Ucb Sa | PROCEDURE FOR CATALYTIC HYDROGENOLYZING OF MALEIC ANHYDRIDE. | |
US2813167A (en) * | 1953-07-21 | 1957-11-12 | Westinghouse Electric Corp | Circuit breaker |
US2776349A (en) * | 1954-10-20 | 1957-01-01 | Gen Electric | Magnetic thermal trip |
US2904655A (en) * | 1954-10-28 | 1959-09-15 | Westinghouse Electric Corp | Circuit breaker |
US2902560A (en) * | 1955-05-18 | 1959-09-01 | Square D Co | Circuit breaker |
US3098136A (en) * | 1955-06-09 | 1963-07-16 | Square D Co | Circuit breaker |
NL96953C (en) * | 1955-06-17 | |||
US3165609A (en) * | 1955-08-04 | 1965-01-12 | Fed Pacific Electric Co | Temperature compensated circuit breakers |
US2847533A (en) * | 1956-06-11 | 1958-08-12 | Fed Pacific Electric Co | Circuit breakers |
US2897314A (en) * | 1956-06-11 | 1959-07-28 | Fed Pacific Electric Co | Circuit breakers with thermal and magnetic tripping |
US3179767A (en) * | 1956-06-21 | 1965-04-20 | Wadsworth Electric Mfg Co | Circuit breaker with improved electromagnetic tripping device |
US2866027A (en) * | 1956-10-04 | 1958-12-23 | Westinghouse Electric Corp | Circuit breaker |
US2989604A (en) * | 1957-04-04 | 1961-06-20 | Gen Electric | Circuit breaker |
US3178535A (en) * | 1957-04-12 | 1965-04-13 | Westinghouse Electric Corp | Automatic circuit breaker with improved bimetallic and electromagnetic trip device |
US3110786A (en) * | 1959-11-03 | 1963-11-12 | Westinghouse Electric Corp | Electromagnetic thermal current circuit breaker |
US3134000A (en) * | 1960-10-14 | 1964-05-19 | Square D Co | Electric circuit breaker with tandem arranged mechanisms |
US3200217A (en) * | 1962-03-27 | 1965-08-10 | Westinghouse Electric Corp | Circuit breaker with thermal and magnetic trip means |
US3418607A (en) * | 1966-02-16 | 1968-12-24 | Westinghouse Electric Corp | Circuit breaker with improved trip means |
US3487343A (en) * | 1967-12-21 | 1969-12-30 | Ite Imperial Corp | Circuit breaker thermal and magnetic tripping mechanism |
US5381120A (en) * | 1993-11-15 | 1995-01-10 | General Electric Company | Molded case circuit breaker thermal-magnetic trip unit |
MX2014010199A (en) * | 2012-02-28 | 2014-11-21 | Siemens Ag | Circuit breaker thermal-magnetic trip units and methods. |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US645902A (en) * | 1898-08-25 | 1900-03-20 | Cleveland Machine Screw Company | Motor-gearing. |
US1298701A (en) * | 1916-06-13 | 1919-04-01 | Union Switch & Signal Co | Magnetic device. |
US1448383A (en) * | 1918-06-17 | 1923-03-13 | Westinghouse Electric & Mfg Co | Switching device |
DE597445C (en) * | 1928-07-25 | 1934-05-25 | Schiele & Bruchsaler Industrie | Overcurrent release for electrical switches |
US2027238A (en) * | 1930-11-26 | 1936-01-07 | Westinghouse Electric & Mfg Co | Circuit breaker |
DE616133C (en) * | 1932-03-23 | 1935-07-20 | Siemens Schuckertwerke Akt Ges | Electric switch with electromagnetic and electrothermal release and momentary switching on and off by means of a snap spring mechanism |
US2035743A (en) * | 1934-03-29 | 1936-03-31 | Bulldog Electric Prod Co | Circuit breaker |
US2184372A (en) * | 1937-01-27 | 1939-12-26 | Gen Electric | Circuit breaker |
US2089716A (en) * | 1937-01-29 | 1937-08-10 | Gen Electric | Circuit breaker |
USRE22218E (en) * | 1937-06-18 | 1942-11-03 | Circuit breaker | |
US2265030A (en) * | 1938-03-25 | 1941-12-02 | Westinghouse Electric & Mfg Co | Circuit breaker |
US2328458A (en) * | 1940-11-07 | 1943-08-31 | Square D Co | Circuit breaker |
US2300884A (en) * | 1941-03-24 | 1942-11-03 | Westinghouse Electric & Mfg Co | Circuit interrupter |
US2312168A (en) * | 1941-07-25 | 1943-02-23 | Square D Co | Circuit breaker |
US2370340A (en) * | 1942-07-07 | 1945-02-27 | Chase Shawmut Co | Circuit breaker |
US2424909A (en) * | 1942-12-30 | 1947-07-29 | Frank Adam Electric Co | Circuit interrupting device |
US2573306A (en) * | 1948-08-11 | 1951-10-30 | Gen Electric | Electric circuit breaker |
US2573307A (en) * | 1949-05-03 | 1951-10-30 | Gen Electric | Calibration of electric circuit breakers |
US2568423A (en) * | 1950-07-07 | 1951-09-18 | Westinghouse Electric Corp | Circuit breaker |
-
1945
- 1945-05-09 US US592804A patent/US2624816A/en not_active Expired - Lifetime
-
1946
- 1946-05-09 GB GB14036/46A patent/GB611817A/en not_active Expired
-
1950
- 1950-05-23 DE DEW2158A patent/DE823755C/en not_active Expired
-
1952
- 1952-05-09 US US287018A patent/US2677026A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2624816A (en) | 1953-01-06 |
DE823755C (en) | 1951-12-06 |
US2677026A (en) | 1954-04-27 |
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